Piston pump of type having at least three pumping chambers

Abstract

The invention describes a piston pump (1, 1 ', 1' ') of the type having at least three pumping chambers (20), comprising: a plurality of pistons (45); a head (10) in which a plurality of through-bores (15) are formed, each through-bore slidably receiving a respective piston therein and each through-bore at least partially containing a respective pumping chamber therein; the present invention relates to a device (100) for dispensing a liquid, comprising a head (155, 155 ', 155' '), a cover (155, 155', 155 '') removably secured to the head and provided with a first face (165) in contact with the head and an opposite second face (160), and a transfer channel (175, 185, 185 ', 185' ', 190) formed in the cover (155, 155', 155 '').

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